CN106013910B - A kind of stepped prefabricated assembled rectangular underground granary of encased steel plate - Google Patents

Abstract

A kind of stepped prefabricated assembled rectangular underground granary of encased steel plate, the flat shape of the underground granary is rectangle, including orlop, the prefabricated bulkhead plate of polylith, silo roof, multiple function, reinforcing prop, the bulkhead plate is rectangle prefabricated chunk, its periphery can be attached by attachment device with adjacent bulkhead plate, multiple function or reinforcing prop；The multiple function positions bulkhead, its depth anchored into soil is more than orlop depth；It is characterized in that：Multiple function is divided into several sections from top to bottom, first layer bulkhead plate is equipped with the inside of the first segment of the superiors, reinforcing prop is first equipped with the inside of second segment, so that reinforcing prop medial surface is concordant with first layer bulkhead plate medial surface, second layer bulkhead plate is equipped with reinforcing prop medial surface so that first and second layer of bulkhead plate part overlap joint again；With above-mentioned set-up mode so that second and third layer of bulkhead plate part overlap joint, overlaps to bottom one layer of bulkhead plate, form stepped assembled rectangular underground granary always.

Description

A stepped prefabricated rectangular underground granary covered with steel plates

technical field

The invention relates to the technical field of underground granaries, in particular to a stepped prefabricated rectangular underground granary with outsourcing steel plates.

Background technique

Underground granaries are built under the shallow surface, which can store grain at low temperature all year round, maintain grain quality, inhibit the occurrence of pests, avoid fumigation with toxic chemicals, resist natural damage, and be used for both war and peace. Many experts and scholars agree that it is reasonable to promote the application of underground granaries The new system and new technology of grain storage can realize low-temperature environmental protection, energy saving and land saving, quality assurance and loss reduction, and ecological grain storage.

The existing underground granaries in my country are generally located in general loess areas with low groundwater levels and suitable for sticky areas, such as cave warehouses, trumpet warehouses, double-curved arch warehouses, semi-underground warehouses, and cave-shaped trumpet warehouses; Brick structure, small storage capacity, large floor space and low degree of mechanization.

In order to build a new type of underground granary that can be popularized and applied in areas with high groundwater levels and complex geological conditions, some national patents and documents have also proposed a circular granary, a large underground rectangle surrounded by cylinders and semi-cylinders, and a pile-enclosed compound type. However, there are still some problems to be solved urgently in the popularization and application of the above-mentioned new warehouse types, such as: (1) Underground grain storage warehouses have high standards of waterproof and moisture-proof requirements. Ensure that the warehouse body does not leak or seep within the service life; the coiled material used is easy to age, the construction process is complicated and difficult, and construction quality problems are prone to occur. (2) The wet work environment of deep foundation pit has a long construction period. After the excavation of the foundation pit and precipitation, the cast-in-place construction of the warehouse bottom and the sliding form construction of the warehouse wall need to be carried out in a wet working environment for a long time, resulting in high labor intensity, long construction period and high construction cost. (3) The cost of foundation pit support is high. For this kind of deep foundation pit, "steel pile + waist beam + water sealing steel plate" foundation pit support is a more economical way, but the cost accounts for 25-30% of the civil construction cost, and the construction cost is relatively high.

The invention whose application number is CN200910207155.1 discloses an underground granary, which includes a roof, a wall and a bottom. The steel plates are connected by steel members to form a combined structure of the warehouse wall to prevent water and moisture. The shape of the wall of the underground granary is straight or curved, such as cylindrical, square, semicircular, etc. The invention solves the waterproof and moisture-proof problem at the bottom of the warehouse by outsourcing the steel plate. At the same time, when the construction is carried out at the bottom of the warehouse, the steel plate is used as a formwork to speed up the construction and reduce the construction cost. However, the construction is pouring on site, and this construction method requires excavation of the foundation pit, so the overall construction cost is high and the construction period is long. insufficient.

The invention with application number CN200910207154.7 discloses an underground granary, including a roof, a wall and a bottom. The wall is divided into an inner wall and an outer wall. A cavity is formed between them, and the cavity is used for detection and repair of water leakage in the underground granary, and for ventilation of the underground granary and detection of grain conditions. The granary of the invention also needs foundation pit excavation, which has disadvantages such as troublesome construction, high construction cost, and long construction period.

The prefabricated structure is one of the effective ways to realize the industrialization of building structures and building energy saving and emission reduction. For a long time, concrete buildings mainly adopt the traditional operation method of on-site construction, with a low degree of industrialization, water consumption, energy consumption, artificial waste, and sewage discharge. The amount is large, which does not conform to the national sustainable development policy of energy conservation and environmental protection. The prefabricated structure can be prefabricated in the factory and assembled on site to realize the industrialization of building structures. At the same time, it can effectively improve the efficiency of materials in building energy saving and structural performance, save energy and resources, reduce construction waste and adverse effects on the environment, and reduce construction site restrictions. Wait. Therefore, in order to provide a "quick, good and economical" new type of underground grain storage, it has become necessary to develop a prefabricated new type of underground storage.

Contents of the invention

The purpose of the present invention is to provide a stepped prefabricated assembled rectangular underground granary with outsourcing steel plates. The prefabricated and assembled underground granary adopts outsourced steel plates to replace waterproof coiled material and outer steel bar of the warehouse wall, and has good waterproof and anti-seepage effects and Comprehensive benefits: Prefabricated warehouse wall panels can be produced standardizedly in prefabricated component factories, the processing and manufacturing quality can be effectively controlled and energy-saving and environmentally friendly, prefabricated products are assembled on site, mechanized installation and construction, and cross-construction can be used to shorten the construction period. In addition, the prefabricated warehouse structure can be used as a foundation pit support system, saving foundation pit support costs and reducing construction investment.

The solution of the present invention is: a prefabricated underground granary, the plane shape of the underground granary is rectangular, including the bottom of the granary, a plurality of prefabricated wall panels, the roof, multi-functional columns, and reinforced columns. The wall panel is a rectangular prefabricated plate with a connecting device around it. The prefabricated warehouse wall panel can be connected with the adjacent prefabricated warehouse wall panel, multi-functional column or reinforced column through the connecting device; the multi-functional column can position the prefabricated warehouse wall panel, The depth of its anchoring into the soil is greater than the depth of the bottom of the warehouse, and it is the main force-bearing member for bearing earth pressure, grain pressure and buoyancy resistance; There is the first layer of prefabricated warehouse wall panels, and the inner side of the second section is provided with reinforced columns first, so that the inner surface of the reinforced columns is flush with the inner surface of the first layer of prefabricated warehouse panels, and then the second layer of prefabricated warehouses is installed on the inner surface of the reinforced columns siding, so that the first and second layer of prefabricated warehouse wall panels are partially overlapped; with the above-mentioned setting method, the second and third layer of prefabricated warehouse wall panels are partially overlapped, until the bottom layer of prefabricated warehouse wall panels is overlapped, A stepped rectangular underground granary is formed.

The present invention is characterized in that the prefabricated warehouse wall plate multifunctional column and the reinforced column adopt steel columns or concrete columns provided with steel embedded parts, the multifunctional column and the reinforced column are connected by bolts or welding seams, and the multifunctional column or the reinforced column is provided with Position the rigid member. The multifunctional column and the reinforced column should ensure that they form an integral force with the surrounding connecting members, so that the steel column or the concrete column with steel embedded parts can be easily and conveniently welded to the connecting member; the multifunctional column and the reinforced column It is connected as a whole by bolts or welding seams, and as the depth increases, the overall cross-sectional size formed by the two becomes larger and larger, so that it can effectively resist the earth pressure that increases with depth from top to bottom, and the structural design is more comprehensive. Economically sound. The positioning steel member of the multifunctional column can be accurately positioned when the prefabricated warehouse wall is installed, and at the same time, it can provide a fixing function before the prefabricated warehouse wall and the multifunctional column are welded.

The present invention is also characterized in that the prefabricated silo wall is an integral structure in which the outer steel plate and the inner concrete slab are combined, the outer steel plate and the inner concrete are connected by anchors, the inner side of the inner concrete is provided with a steel mesh, and the prefabricated silo wall has a L-shaped wrapping corners, U-shaped wrapping corners on the left, right and lower right sides of the prefabricated warehouse panels. In this way, the outsourcing steel plate of the prefabricated warehouse wall can replace the waterproof coiled material and the outer steel bar of the warehouse wall, which has good waterproof, anti-seepage effect and comprehensive benefits; the steel plate and concrete are connected by anchors to form a steel plate concrete composite structure prefabricated warehouse wall , it not only reduces the heavy work of tying steel bars on the warehouse wall, saves the time for making the warehouse wall, reduces labor costs, but also reduces the number and cost of formwork used for pouring ordinary reinforced concrete structures; in addition, prefabricated warehouse panels can be used in Standardized production of prefabricated component factories, the quality of processing and manufacturing can be effectively controlled and energy-saving and environmentally friendly. Prefabricated products are assembled on site, mechanized installation and construction, cross-construction is possible, and the construction period is shortened; finally, the prefabricated warehouse wall with combined structure has high bearing capacity and crack resistance. Good, strong energy dissipation capacity, good ductility, and other advantages. There are L-shaped corners on the upper side of the prefabricated warehouse wall, and U-shaped corners on the left, right and lower right sides of the prefabricated warehouse wall, which is convenient for the prefabricated warehouse wall and the adjacent prefabricated warehouse wall and positioning columns or reinforcements to be stationed. Solder connection.

The present invention is also characterized in that the ring of the prefabricated warehouse wall plate is horizontal and flush to the outside, and its outer side is welded and connected with the multifunctional column or the reinforced column, and the inner side of the adjacent prefabricated warehouse wall plate is welded and connected with the connecting steel plate; the multifunctional column or the reinforced column is connected with the Waterproof concrete of the same grade as the prefabricated warehouse wall is poured in the cavity surrounded by the adjacent prefabricated warehouse wall panels and connecting steel plates. In this way, after the outer side of the prefabricated warehouse wall is welded with the multi-functional column or the reinforced column, it is ensured that the outer steel plate is kept as a whole in the circumferential direction, so that the prefabricated warehouse wall can be effectively waterproofed; in addition, the inner side of the prefabricated warehouse wall is connected with The steel plate welding connection, on the one hand, adds a second waterproof measure at the joint, and makes the multi-functional column or reinforced column and the prefabricated warehouse wall and the concrete between them form an integral structure, which makes the force more reasonable and the joint construction more efficient. easy and convenient.

The present invention is also characterized in that the prefabricated warehouse wall board and the lower two layers are vertically dislocated and overlapped, and the overlapping parts of the upper and lower prefabricated warehouse wall boards are welded with full-length fillet welds. The vertical dislocation lapping method of the prefabricated warehouse wall panels and the lower two floors makes the construction of the joints between the upper and lower adjacent prefabricated warehouse panels very convenient, and can better ensure the construction quality; the lapping of the upper and lower prefabricated warehouse panels On the one hand, the full-length fillet welds at the connecting parts make the upper and lower steel plates seamlessly welded to form a whole, so as to prevent groundwater from flowing or seeping into the interior of the underground warehouse, and on the other hand, make the upper and lower prefabricated warehouse walls structurally integrated , together with positioning columns or reinforcing columns to resist external forces such as earth pressure.

The present invention is also characterized in that the upper and lower layers of the prefabricated warehouse wall panels are provided with oblique reinforcement plates at the dislocation laps of the upper and lower layers, and the reinforcement plates are welded to the upper and lower prefabricated warehouse wall panels. When the grain is out of the warehouse, there will be grain at the upper and lower two-layer dislocation laps of the prefabricated warehouse wall panels, and it is difficult to clean the grain here; an inclined reinforcing plate with a certain slope is provided at the lap joints. Self-flowing into the warehouse, on the other hand, it can provide a second waterproof guarantee for the overlap of the warehouse wall, and at the same time, the connection between the upper and lower warehouse walls can be strengthened in terms of structural design.

The present invention is also characterized in that the upper and lower layers of the prefabricated warehouse wall panels are provided with stiffening ribs at intervals in the circumferential direction; The prefabricated warehouse wall panels are welded vertically; the stiffeners are multi-piece, and are evenly distributed along the circumferential direction of the overlapping parts of the upper and lower prefabricated warehouse wall panels. The stiffening ribs set at the upper and lower dislocation laps of the prefabricated warehouse wall panels along the circumferential interval are to strengthen the connection between the upper and lower adjacent prefabricated warehouse wall panels. There is no conflict in space between the full-length fillet welds of the overlapping parts of the lower two prefabricated silo walls; the stiffeners are welded vertically to the adjacent upper and lower prefabricated silo walls so that the joints of the silo walls improve their resistance to bending moments and shear forces Ability.

The present invention is also characterized in that the bottom of the warehouse adopts a double-sided steel plate concrete composite structure, and the upper and lower steel plates on the bottom plate and the concrete between them are connected by anchors. The steel plate in the warehouse wall of this double-sided composite structure is used as the template of the warehouse bottom and replaces the steel bar, which saves the construction cost of the warehouse wall, reduces the construction difficulty of the warehouse wall, and speeds up the overall construction speed; the double-layer steel plate concrete composite structure improves the rigidity of the warehouse wall. and strength, effectively resisting soil pressure and grain pressure, which is conducive to the expansion of the underground warehouse to a deeper and larger direction, which increases the scope of application of the warehouse type, and is more conducive to the waterproof and moisture-proof problems of the granary.

The present invention is also characterized in that the multifunctional column and the reinforced column of the underground granary adopt a hollow column or a solid column whose section form is a straight line or a curve.

The present invention is also characterized in that the warehouse roof adopts a concrete-steel composite structure. In this way, the above-mentioned structure fully exerts the compressive resistance of concrete and the tensile capacity of steel plates, making the stress of the roof structure of large-span warehouses more reasonable, and steel plates can be used as formwork during construction, which greatly reduces the difficulty of construction and can also speed up construction. speed.

The present invention is also characterized in that the construction method includes the following steps: (1) driving the multifunctional column into a certain depth underground at a predetermined position according to design requirements; (2) excavating the first layer of soil in the area surrounded by the multifunctional column; 3) After excavating the first layer of soil, install the first layer of prefabricated warehouse wall panels on the inner side of the multifunctional column; (4) After installing the first layer of prefabricated warehouse wall panels, continue to dig down the second layer of soil; ( 5) Install the first layer of reinforced columns on the inside of the multifunctional column; (6) Install the second layer of prefabricated warehouse wall panels on the inside of the first layer of reinforced columns; (7) Follow the construction method of steps (4)-(6) above , install the prefabricated silo wall panels in turn until the bottom of the silo; (8) carry out the construction of the bottom of the silo; (9) finally carry out the construction of the roof and beams of the silo, that is, complete the overall structure of the underground granary. The depth of the multi-functional column driven into the ground is determined by comprehensive factors such as the bearing capacity of the foundation, buoyancy, soil pressure on the warehouse wall, and lateral pressure of the grain. When the bearing capacity of the ground foundation cannot meet the engineering requirements, the positioning column and the strengthening column can replace the pile bearing cylinder The vertical pressure from the silo; in addition, the multi-functional column and the reinforcement column can also replace the uplift piles to resist the buoyancy of the groundwater on the silo; the multi-functional column can position the prefabricated silo wall in the vertical and circumferential directions to ensure that the prefabricated Each layer of the warehouse wall board is vertically vertical, and the ring direction forms a ring, so that the force is more reasonable; after the construction of the multi-functional column is completed, it is installed in layers from top to bottom along the height; when installing each layer of prefabricated warehouse wall boards , first excavate the space whose height is greater than or equal to the height of the prefabricated warehouse wall plate and whose diameter is greater than or equal to the outer diameter of the warehouse, and at the same time ensure that the soil does not collapse during the excavation process, so as to leave a construction space for the installation of the prefabricated warehouse wall plate to ensure The construction of the prefabricated silo wall panels is carried out safely and smoothly; when the excavation depth is below the groundwater level, precipitation must be carried out first, and then the excavation should be carried out; In this way, the soil, the slurry and the prefabricated silo wall form a compact whole to ensure that when the next layer of soil is excavated, the soil of this layer will not collapse, thus ensuring the safety of the excavation of the lower layer of soil . When installing each layer of prefabricated warehouse wall panels, firstly weld the prefabricated warehouse wall panels with the adjacent multi-functional columns or reinforced columns to ensure reliable connection between the prefabricated warehouse wall panels and the multi-functional columns or reinforced columns, and then weld the horizontally adjacent prefabricated panels with connecting steel plates Warehouse wall panels: After the adjacent upper and lower layers of prefabricated warehouse wall panels are installed in place, the upper and lower adjacent warehouse walls are first welded with full-length fillet welds, then stiffeners are installed along the weld ring, and finally oblique reinforcement plates are installed; After the construction of the adjacent warehouse wall is completed, the waterproof concrete of the same grade as the prefabricated warehouse wall is poured on the horizontally adjacent prefabricated warehouse wall. According to this construction method, the soil body is excavated and the prefabricated silo wall panels are installed sequentially from top to bottom. The cylindrical silo body structure formed by each layer of prefabricated silo wall panels can be used as the foundation pit support system. In this way, the silo can be well The warehouse structure and foundation pit support system are integrated into one, which not only saves the cost of foundation pit support alone, greatly reduces construction investment, but also greatly shortens the construction period of the entire project.

Description of drawings

Figure 1 Floor plan of the underground warehouse

Figure 2 Sectional layout of the underground warehouse

Figure 3 Schematic diagram of the section of a single prefabricated warehouse wall panel

Figure 4 Schematic diagram of the layout of the first precast concrete slab

Figure 5 Schematic diagram of the layout of precast concrete slabs in the second section and the following sections

Figure 6 Schematic diagram of the layout of the precast concrete slab at the corner of the first section

Figure 7 Schematic diagram of the layout of precast concrete slabs at the corners of the second section and the following sections

Figure 8 Schematic diagram of warehouse wall nodes

In the attached drawings: 1 is a multifunctional column; 2 is a reinforced column; 3 is a prefabricated warehouse wall; 4 is a warehouse roof; 5 is a warehouse bottom; 6 is a connecting steel plate; 7 is a stiffening rib; 10 is covering soil; 12 is waterproof concrete; 14 is special-shaped column; 15 is grain outlet.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment one

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, and Fig. 8: this embodiment provides a stepped prefabricated rectangular underground granary covered with steel plates. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, a multifunctional column 1, and a reinforced column 2. The prefabricated warehouse wall panels 3 are rectangular prefabricated plates with connecting devices around them, and the warehouse walls are prefabricated through the connecting devices The board 3 can be connected with the adjacent prefabricated warehouse wall board 3 , the multifunctional column 1 or the reinforced column 2 ; the multifunctional column 1 can position the warehouse wall 3 . The multifunctional column 1 is divided into several sections from top to bottom. The first layer of prefabricated warehouse wall panels 3 is provided on the inner side of the first section of the uppermost layer, and the reinforcement column 2 is firstly provided on the inside of the second section, so that the inner surface of the reinforcement column 2 is in line with the first section. The inner surface of the first layer of prefabricated warehouse wall panels 3 is even, and the second layer of prefabricated warehouse wall panels 3 is arranged on the inner surface of the reinforcement column 2, so that the first and second layers of prefabricated warehouse wall panels 3 are partially overlapped; with the above-mentioned setting method, The second and third layers of prefabricated silo wall panels 3 are partially overlapped until they reach the lowermost layer of prefabricated silo wall panels 3 to form a ladder-like assembled rectangular underground granary.

The prefabricated warehouse wall panel 3 is a structure in which the outer steel plate and the inner concrete plate are combined into an integral structure. The outer steel plate and the inner concrete are connected by anchors, and the inner side of the inner concrete is provided with a steel mesh. Corner wrapping, there are U-shaped wrapping corners on the left, right and lower right sides of the prefabricated warehouse wall panels 3.

The upper and lower layers of the prefabricated warehouse wall panels 3 are vertically dislocated and overlapped, and the overlapping parts of the upper and lower layers of the prefabricated warehouse wall panels 3 are welded with full-length fillet welds 9 . The upper and lower layers of the prefabricated warehouse wall panels 3 are provided with oblique reinforcement plates 8 at the overlapping joints of the upper and lower layers, and the reinforcement plates 8 are welded to the upper and lower prefabricated warehouse wall panels 3 .

Stiffeners 7 are arranged at intervals along the circumferential direction at the overlapping joints of the upper and lower layers of the prefabricated warehouse wall panel 3 . The stiffening rib 7 is formed by cutting off a right angle from a right-angled triangular steel plate, and the stiffening rib 7 is welded vertically to the adjacent upper and lower prefabricated warehouse wall panels 3; to a uniform distribution.

The underground granary can realize the storage of solid particles, powder materials or liquid materials.

Embodiment two:

As shown in Figure 1 and Figure 2: this embodiment provides a stepped prefabricated rectangular underground granary covered with steel plates. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, a multifunctional column 1, and a reinforced column 2. The prefabricated warehouse wall panels 3 are rectangular prefabricated plates with connecting devices around them, and the warehouse walls are prefabricated through the connecting devices The board 3 can be connected with the adjacent prefabricated warehouse wall board 3 , the multifunctional column 1 or the reinforced column 2 ; the multifunctional column 1 can position the warehouse wall 3 . The multifunctional column 1 is divided into several sections from top to bottom. The first layer of prefabricated warehouse wall panels 3 is provided on the inner side of the first section of the uppermost layer, and the reinforcement column 2 is firstly provided on the inside of the second section, so that the inner surface of the reinforcement column 2 is in line with the first section. The inner surface of the first layer of prefabricated warehouse wall panels 3 is even, and the second layer of prefabricated warehouse wall panels 3 is arranged on the inner surface of the reinforcement column 2, so that the first and second layers of prefabricated warehouse wall panels 3 are partially overlapped; with the above-mentioned setting method, The second and third layers of prefabricated silo wall panels 3 are partially overlapped until they reach the lowermost layer of prefabricated silo wall panels 3 to form a ladder-like assembled rectangular underground granary.

The warehouse bottom 5 is a conical structure, and the warehouse bottom 5 adopts a double-sided steel plate concrete composite structure. In this steel plate concrete composite structure, the steel plate is used as the formwork of the warehouse bottom and replaces the steel bars. It does not need to lay steel bars during construction, which saves the construction cost of the warehouse wall, reduces the construction difficulty of the warehouse bottom, and speeds up the overall construction speed; the double-layer steel plate concrete composite structure It improves the stiffness and strength of the silo wall, effectively resists earth pressure and grain pressure, and is conducive to the development of underground granaries in a deeper and larger direction, which increases the scope of application of this type of silo, and is more conducive to the waterproof and moisture-proof problems of the granary.

The warehouse roof 4 adopts a double-sided steel plate concrete composite structure, the warehouse roof 4 is provided with a grain inlet and outlet 15, and the warehouse roof 4 is provided with a covering soil 10. The double-sided steel plate concrete composite structure fully exerts the compressive resistance of concrete and the tensile capacity of steel plates, making the stress of the roof structure of large-span warehouses more reasonable, and the steel plates can be used as formwork during construction, which greatly reduces the difficulty of construction and at the same time It can speed up the construction speed. The entrance and exit of grain are equipped with modern grain entry and exit equipment to facilitate the storage and extraction of grain.

The underground granary can realize the storage of solid particles, powder materials or liquid materials. The underground granary has good airtightness and support, and can also realize the storage of powder and liquid materials. With different feeding and discharging equipment, it is widely used.

Embodiment Three

This embodiment also provides a construction method for a stepped prefabricated rectangular underground granary covered with steel plates, including the following steps:

1) Drive the multifunctional column 1 into the ground to a certain depth at a predetermined position according to the design requirements;

2) Excavating the first layer of soil in the area surrounded by the multifunctional column 1;

3) After excavating the first layer of soil, install the first layer of prefabricated warehouse wall panels 3 on the inner side of the multifunctional column 1;

4) After installing the first layer of prefabricated warehouse wall panels 3, continue to dig down the second layer of soil;

5) Install the first layer of reinforcement column 2 inside the multifunctional column;

6) Install the second layer of prefabricated warehouse wall panels 3 on the inner side of the first layer of reinforcement columns 2;

7) According to the construction method of steps 4)-6) above, install the prefabricated warehouse wall panels 3 downwards in sequence until the bottom of the warehouse;

8) Carry out the construction of the warehouse bottom 5;

9) Finally, carry out the construction of the warehouse roof 4, that is, complete the overall structure of the underground granary.

The depth of the multi-functional column driven into the ground is determined by comprehensive factors such as the bearing capacity of the foundation, buoyancy, soil pressure on the warehouse wall, and lateral pressure of the grain. When the bearing capacity of the ground foundation cannot meet the engineering requirements, the positioning column and the strengthening column can replace the pile bearing cylinder The vertical pressure from the silo; in addition, the multi-functional column and the reinforcement column can also replace the uplift piles to resist the buoyancy of the groundwater on the silo; the multi-functional column can position the prefabricated silo wall in the vertical and circumferential directions to ensure that the prefabricated Each layer of the warehouse wall board is vertically vertical, and the ring direction forms a ring, so that the force is more reasonable; after the construction of the multi-functional column is completed, it is installed in layers from top to bottom along the height; when installing each layer of prefabricated warehouse wall boards , first excavate the space whose height is greater than or equal to the height of the prefabricated warehouse wall plate and whose diameter is greater than or equal to the outer diameter of the warehouse, and at the same time ensure that the soil does not collapse during the excavation process, so as to leave a construction space for the installation of the prefabricated warehouse wall plate to ensure The construction of the prefabricated silo wall panels is carried out safely and smoothly; when the excavation depth is below the groundwater level, precipitation must be carried out first, and then the excavation should be carried out; In this way, the soil, the slurry and the prefabricated silo wall form a compact whole to ensure that when the next layer of soil is excavated, the soil of this layer will not collapse, thus ensuring the safety of the excavation of the lower layer of soil . When installing each layer of prefabricated warehouse wall panels, firstly weld the prefabricated warehouse wall panels with the adjacent multi-functional columns or reinforced columns to ensure reliable connection between the prefabricated warehouse wall panels and the multi-functional columns or reinforced columns, and then weld the horizontally adjacent prefabricated panels with connecting steel plates Warehouse wall panels: After the adjacent upper and lower layers of prefabricated warehouse wall panels are installed in place, the upper and lower adjacent warehouse walls are first welded with full-length fillet welds, then stiffeners are installed along the weld ring, and finally oblique reinforcement plates are installed; After the construction of the adjacent warehouse wall is completed, the waterproof concrete of the same grade as the prefabricated warehouse wall is poured on the horizontally adjacent prefabricated warehouse wall. According to this construction method, the soil body is excavated and the prefabricated silo wall panels are installed sequentially from top to bottom. The cylindrical silo body structure formed by each layer of prefabricated silo wall panels can be used as the foundation pit support system. In this way, the silo can be well The warehouse structure and foundation pit support system are integrated into one, which not only saves the cost of foundation pit support alone, greatly reduces construction investment, but also greatly shortens the construction period of the entire project.

Embodiment Four

As shown in Figure 1 and Figure 2: this embodiment provides a stepped prefabricated rectangular underground granary covered with steel plates. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, a multifunctional column 1, and a reinforced column 2. The prefabricated warehouse wall panels 3 are rectangular prefabricated plates with connecting devices around them, and the warehouse walls are prefabricated through the connecting devices The board 3 can be connected with the adjacent prefabricated warehouse wall board 3 , the multifunctional column 1 or the reinforced column 2 ; the multifunctional column 1 can position the warehouse wall 3 . The multifunctional column 1 is divided into several sections from top to bottom. The first layer of prefabricated warehouse wall panels 3 is provided on the inner side of the first section of the uppermost layer, and the reinforcement column 2 is firstly provided on the inside of the second section, so that the inner surface of the reinforcement column 2 is in line with the first section. The inner surface of the first layer of prefabricated warehouse wall panels 3 is even, and the second layer of prefabricated warehouse wall panels 3 is arranged on the inner surface of the reinforcement column 2, so that the first and second layers of prefabricated warehouse wall panels 3 are partially overlapped; with the above-mentioned setting method, The second and third layers of prefabricated silo wall panels 3 are partially overlapped until they reach the lowermost layer of prefabricated silo wall panels 3 to form a ladder-like assembled rectangular underground granary.

The outer surface of the prefabricated warehouse wall panel 3 is sprayed with protective paint, and the protective paint includes the following materials in parts by weight: 115 parts of petroleum asphalt, 7 parts of glass fiber, 8 parts of bentonite, 6 parts of emulsifier, and 1.5 parts of dispersant 1.5 parts of stabilizer, 25 parts of organic fluorine modified styrene-acrylic emulsion, 2.5 parts of antifreeze.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiment five

As shown in Figure 1 and Figure 2: this embodiment provides a stepped prefabricated rectangular underground granary covered with steel plates. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, a multifunctional column 1, and a reinforced column 2. The prefabricated warehouse wall panels 3 are rectangular prefabricated plates with connecting devices around them, and the warehouse walls are prefabricated through the connecting devices The board 3 can be connected with the adjacent prefabricated warehouse wall board 3 , the multifunctional column 1 or the reinforced column 2 ; the multifunctional column 1 can position the warehouse wall 3 . The multifunctional column 1 is divided into several sections from top to bottom. The first layer of prefabricated warehouse wall panels 3 is provided on the inner side of the first section of the uppermost layer, and the reinforcement column 2 is firstly provided on the inside of the second section, so that the inner surface of the reinforcement column 2 is in line with the first section. The inner surface of the first layer of prefabricated warehouse wall panels 3 is even, and the second layer of prefabricated warehouse wall panels 3 is arranged on the inner surface of the reinforcement column 2, so that the first and second layers of prefabricated warehouse wall panels 3 are partially overlapped; with the above-mentioned setting method, The second and third layers of prefabricated silo wall panels 3 are partially overlapped until they reach the lowermost layer of prefabricated silo wall panels 3 to form a ladder-like assembled rectangular underground granary.

The outer surface of the prefabricated warehouse wall panel 3 is sprayed with protective paint, and the protective paint includes the following materials in parts by weight: 110 parts of petroleum asphalt, 10 parts of glass fiber, 9 parts of bentonite, 7.5 parts of emulsifier, 2 parts of dispersant 2 parts, stabilizer 2 parts, organic fluorine modified styrene-acrylic emulsion 30 parts, antifreeze 3 parts.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiment six

As shown in Figure 1 and Figure 2: this embodiment provides a stepped prefabricated rectangular underground granary covered with steel plates. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, a multifunctional column 1, and a reinforced column 2. The prefabricated warehouse wall panels 3 are rectangular prefabricated plates with connecting devices around them, and the warehouse walls are prefabricated through the connecting devices The board 3 can be connected with the adjacent prefabricated warehouse wall board 3 , the multifunctional column 1 or the reinforced column 2 ; the multifunctional column 1 can position the warehouse wall 3 . The multifunctional column 1 is divided into several sections from top to bottom. The first layer of prefabricated warehouse wall panels 3 is provided on the inner side of the first section of the uppermost layer, and the reinforcement column 2 is firstly provided on the inside of the second section, so that the inner surface of the reinforcement column 2 is in line with the first section. The inner surface of the first layer of prefabricated warehouse wall panels 3 is even, and the second layer of prefabricated warehouse wall panels 3 is arranged on the inner surface of the reinforcement column 2, so that the first and second layers of prefabricated warehouse wall panels 3 are partially overlapped; with the above-mentioned setting method, The second and third layers of prefabricated silo wall panels 3 are partially overlapped until they reach the lowermost layer of prefabricated silo wall panels 3 to form a ladder-like assembled rectangular underground granary.

The outer surface of the prefabricated warehouse wall panel 5 is sprayed with protective paint, and the protective paint includes the following materials in parts by weight: 105 parts of petroleum asphalt, 13 parts of glass fiber, 10 parts of bentonite, 9 parts of emulsifier, and 2.5 parts of dispersant 2.5 parts of stabilizer, 35 parts of organic fluorine modified styrene-acrylic emulsion, 3.5 parts of antifreeze.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiments 4 to 6 provide special protective coatings for the outer surface of the prefabricated warehouse wall panels, which can protect and prevent corrosion of the prefabricated warehouse wall panels, and play the role of anti-seepage and sealing for the warehouse walls. Spraying or spraying when assembling the warehouse wall on site fundamentally solves technical problems such as corners, gaps, and joints of irregular structures such as leakage, and enhances the waterproof performance of the underground granary. Glass fiber is added to the protective coating, which greatly increases the toughness and tensile strength of the coating, delays the cracking time of the coating, increases its service life, and also has a certain supporting effect on the warehouse wall. The added antifreeze can reduce the damage of low temperature to the protective coating and ensure the safe operation of the underground granary in winter in cold regions.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention without limitation, other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and spirit of the technical solution of the present invention All should be included in the scope of the claims of the present invention.

Claims (10)

1. a kind of prefabricated assembled underground granary, the flat shape of the underground granary is rectangle, including orlop (5), polylith are prefabricated Bulkhead plate (3), silo roof (4), multiple function (1), reinforcing prop (2), the prefabricated bulkhead plate (3) are rectangle prefabricated chunk, week While have attachment device, can be with contiguous prefabricated bulkhead plate (3), multiple function (1) or reinforcement by the prefabricated bulkhead plate (3) of attachment device Column (2) is attached；The multiple function (1) positions prefabricated bulkhead plate (3), its depth anchored into soil is more than orlop (5) depth, is subject to soil pressure, pressure and the main bearing member for resisting buoyancy；It is characterized in that：Multiple function (1) It is divided into several sections from top to bottom, the prefabricated bulkhead plate (3) of first layer is equipped with the inside of the first segment of the superiors, is first equipped with and adds on the inside of second segment Strong column (2) so that reinforcing prop (2) medial surface bulkhead plate (3) medial surface prefabricated with first layer is concordant, then on the inside of reinforcing prop (2) Face is equipped with the prefabricated bulkhead plate (3) of the second layer so that first and second layer of prefabricated bulkhead plate (3) part overlaps；With above-mentioned setting side Formula so that second and third layer of prefabricated bulkhead plate (3) part overlaps, and overlaps to bottom one layer of prefabricated bulkhead plate (3), is formed always Stepped assembled rectangular underground granary.

2. underground granary as claimed in claim 1, it is characterised in that：The multiple function (1) and reinforcing prop (2) uses steel Column or the concrete column equipped with steel embedded part, multiple function (1) by bolt or are welded to connect with reinforcing prop (2), multiple function (1) Or reinforcing prop (2) is equipped with and positions firm component.

3. underground granary as claimed in claim 1, it is characterised in that：The prefabricated bulkhead plate (3) is outside plate and inner side Concrete slab combine integral structure, outside plate is connected with inner side concrete using holdfast, the inner side of inner side concrete Equipped with bar-mat reinforcement, there is L-type cornerite in prefabricated bulkhead plate (3) top, have U on prefabricated bulkhead plate (3) left side, the right and bottom right side Type cornerite.

4. underground granary as claimed in claim 1, it is characterised in that：The circumferential outside of prefabricated bulkhead plate (3) is horizontal concordant, Its outside is welded to connect with multiple function (1) or reinforcing prop (2), is welded on the inside of contiguous prefabricated bulkhead plate (3) with junction steel plate (6) Connection；Poured in the cavity that multiple function (1) or reinforcing prop (2) are surrounded with contiguous prefabricated bulkhead plate (3) and junction steel plate (6) Build the water-proof concrete (12) with prefabricated bulkhead plate (3) ad eundem.

5. underground granary as claimed in claim 1, it is characterised in that：The upper and lower two layers vertical dislocation of prefabricated bulkhead plate (3) Overlap joint, the overlapping part of upper and lower two layers of prefabricated bulkhead plate (3) are welded with elongated angle welding (9).

6. underground granary as claimed in claim 1, it is characterised in that：Upper and lower two layers of dislocation of the prefabricated bulkhead plate (3) is taken Meet place and be equipped with oblique stiffening plate (8), reinforcing plate (8) is welded with prefabricated bulkhead plate (3) up and down.

7. underground granary as claimed in claim 1, it is characterised in that：Upper and lower two layers of dislocation of the prefabricated bulkhead plate (3) is taken The place of connecing is circumferentially spaced to be provided with ribbed stiffener (7).

8. underground granary as claimed in claim 7, it is characterised in that：The ribbed stiffener (7) is cut away by right angled triangle steel plate Right angle forms, the ribbed stiffener (7) and the adjacent equal vertical welding of prefabricated bulkhead plate (3) up and down；Ribbed stiffener (7) is polylith, vertically Prefabricated bulkhead plate (3) overlapping part circumferential direction is uniformly distributed.

9. underground granary as claimed in claim 1, it is characterised in that：The underground granary can realize solid granulates, powder The storage of material or liquid material.

A kind of 10. construction method for building the underground granary described in the claims 1-9 any one, it is characterised in that：Institute Construction method is stated to comprise the following steps：

(1) multiple function (1) is driven underground by certain depth in precalculated position according to design requirement；

(2) surrounded in multiple function (1) and first layer soil is excavated in region；

(3) after first layer soil is excavated, the installation prefabricated bulkhead plate (3) of first layer on the inside of multiple function (1)；

(4) after installing the prefabricated bulkhead plate (3) of first layer, second layer soil is down excavated in continuation；

(5) first layer reinforcing prop (2) is installed on the inside of multiple function；

(6) the installation prefabricated bulkhead plate (3) of the second layer on the inside of first layer reinforcing prop (2)；

(7) according to the construction method of above-mentioned (4)-(6) step, prefabricated bulkhead plate (3) is installed downwards successively, until orlop position；

(8) orlop (5) construction is carried out；

(9) silo roof (4) construction is finally carried out, that is, completes the overall structure of underground granary.